短語(yǔ)詞組短語(yǔ)forced -air-draft cooling tower 強(qiáng)制抽氣冷卻塔stratified forced -draft heating 分層送風(fēng)供煖Forced -Draft-Fan 強(qiáng)制通風(fēng)機(jī)tower forced -air-draft cooling 強(qiáng)制通風(fēng)冷卻塔 返回 forced-draft